Question

The tank of a small airplane holds 48 gallons of fuel. Seven gallons will be used for takeoff and landing. While in the air, the plane will consume an average of 10 gallons of fuel per hour. What is the maximum number of hours the plane can remain in the air?

A. 5.5

B. 4.8

C. 6.0

D. 4.1

Answer 1

Explanation:

If x is the number of hours, then:

48 = 10x + 7

41 = 10x

x = 4.1